linux/include/net/ife.h
Yotam Gigi 1ce8460496 net: Introduce ife encapsulation module
This module is responsible for the ife encapsulation protocol
encode/decode logics. That module can:
 - ife_encode: encode skb and reserve space for the ife meta header
 - ife_decode: decode skb and extract the meta header size
 - ife_tlv_meta_encode - encodes one tlv entry into the reserved ife
   header space.
 - ife_tlv_meta_decode - decodes one tlv entry from the packet
 - ife_tlv_meta_next - advance to the next tlv

Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-03 15:16:45 -05:00

52 lines
1015 B
C

#ifndef __NET_IFE_H
#define __NET_IFE_H
#include <linux/etherdevice.h>
#include <linux/rtnetlink.h>
#include <linux/module.h>
#include <uapi/linux/ife.h>
#if IS_ENABLED(CONFIG_NET_IFE)
void *ife_encode(struct sk_buff *skb, u16 metalen);
void *ife_decode(struct sk_buff *skb, u16 *metalen);
void *ife_tlv_meta_decode(void *skbdata, u16 *attrtype, u16 *dlen, u16 *totlen);
int ife_tlv_meta_encode(void *skbdata, u16 attrtype, u16 dlen,
const void *dval);
void *ife_tlv_meta_next(void *skbdata);
#else
static inline void *ife_encode(struct sk_buff *skb, u16 metalen)
{
return NULL;
}
static inline void *ife_decode(struct sk_buff *skb, u16 *metalen)
{
return NULL;
}
static inline void *ife_tlv_meta_decode(void *skbdata, u16 *attrtype, u16 *dlen,
u16 *totlen)
{
return NULL;
}
static inline int ife_tlv_meta_encode(void *skbdata, u16 attrtype, u16 dlen,
const void *dval)
{
return 0;
}
static inline void *ife_tlv_meta_next(void *skbdata)
{
return NULL;
}
#endif
#endif /* __NET_IFE_H */